I got rid of parasites drinking tons of milk, having yogurt and eating fruits fresh & dried. I did try to eat healthily and organically. I think the more important danger is stressing the body by giving up things that are nutritous in the fear that we will feed the bugs. If they are there, they will feed no matter what we eat.
Those paracides are going to kill the bugs, I personally believe, even if there is Sugar there. Ditto the zapper will kill regardless. Maybe the fight will be protracted by sugar, but really there is no data to go by to determine that one way or another.